Option A
Fider
Developer Tools
Open-platform for customer feedback.
Fider is an open-source feedback platform you can self-host — a free alternative to Canny for indie products.
- Founded
- 2017
- Team
- 1-10
- Listing
- Free (nofollow)
- Listed
- May 2026
Compare
Fider vs Mailpit
Side-by-side comparison of two indie startups from the Startup Spotlight directory.
Option B
Mailpit
Developer Tools
Email and SMTP testing tool for developers.
Mailpit is an OSS local SMTP server with a web UI for catching dev/staging emails. Built by a solo developer.
- Founded
- 2022
- Team
- 1-10
- Listing
- Free (nofollow)
- Listed
- May 2026